Steel fire doors can be equipped with windows, louvers, ventilation louvers, etc. as required. The steel fire door only needs to be pushed open by hand, and then automatically closed, so as to create a quiet environment, it will not make a collision sound like opening the internal and external doors.

5面板防火门,32 x 80 20 分钟防火门，fire rated automatic sliding doors,90分钟门，garage to house fire door,rolling fire shutter,36 inch fire rated door lowe’s 36,5面板防火门,自动防火卷帘，fire rated automatic sliding doors,fire rated folding doors,garage to house fire door,公寓的防火门，5面板防火门,防火门更换费用，fire rated automatic sliding doors,10型防火门，garage to house fire door